Wrench.



W. o. SHAY.

WRBGH.

APPLICATION PILBDJUNE 17, 1903. 91 1,452. Patented Feb. 2, 1 909. y .l 2 SHEETS-SHEET l.

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W. C. SI-IAY.

WRENCH.

APPLIQATION FILED JUNE 17, 1908.

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WILLIAM C. SHAY, OF GHERRYGROVE, PENNSYLVANIA.

WRENCH.

specification or Letters Patent.

Patented Feb. 2, 1909.

i Application filed June 17, 1908. SerialiNo. 438,964.

To all whom 'it may concern:

Be it known that I, WILLIAM C. SLIM', a citizen of the United States, residingV at Cherrygrove, in the county of Warren, State of Pennsylvania, have invented certain new and useful Improvements in Wrenches; and I do hereby declare the following to be a full, clear, and eXact description of the invention,such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to wrenches, more particularly to devices of this class known as quick action wrenches, or those in which the movable jaw may be released and instantly adjusted along the stock to tit to the nut or pipe upon which it is to be employed, and has for one of its objects to simplify and improve the construction and increase the efficiency and utility of devices of this character;

Another object of the invention is to provide an implement of this character wherein the movable jaw may be adjusted to operatively engage the pipe or rod and releasable therefrom without disturbing the body of the movable jaw.

With these and other objects in view the invention consists in a toothed stock having a fixed jaw at one end and a handle at the other end, a movable jaw slidable over the stock, a pawl carried by the movable jaw and engaging the teeth of the stock, a pipe clamping device carried by the movable jaw, means whereby the clamping device may be released without `releasing the movable jaw, and means whereby the pawl Vmay be released to enable the movable jaw to be adjusted longitudinally of the stock.

The invention further consists in certain novel features of construction as hereafter shown and described and then'specically pointed out in the claims, and in the -drawings illustrative of the preferred embodiment of the invention, Figure 1 isa side elevation of the improved wrench. Fig. 2 is a front elevation. Fig. 3 is a side elevation with the stock partly in section and the cover of the movable jaw detached. Fig. L is a section on the line Ll--Liof Fig. 3. Y

The improved device comprises a stock 10 having a jaw 11 at one end and with the other end arranged to receive a handle 12.

The stock 10 is provided with a longitudinal blind slotl in one edge, and with the stock `at the sides' of the slot formed with transverse ratchet teeth 14.

Slidably disposed upon the stock 10 is a movable jaw comprising a plate 15 bearing upon one side of the stock and with a lateral projection 16 at one end bearing against the rear edge of the web member 17 and a lower web member 18 projecting from the plate 15, the web 16 having a flat inner face against which one edge of the stock 10 moves, while the inner end of .the web 18 Vlikewise terminates close to the toothed side of the stock, as shown at 19. Fitting over the webs 17-18 andthe projection 16. is a closure plate 20 secured in place by screws 21 or other similar suitable devices.

A' stud 22 extends through the plates 15-20 adjacent to the web 17, and mounted 4for rotation upon this stud isa pawl 23 having teeth 24 corresponding to and adapted to engage with the teeth 14; of the stock, and thus lock the movable jaw fast to the stock at any point desiredV within the range of the teeth 14, as hereafter explained.

A spring 25 is arranged between the pawl 23 and the web 17 to maintain the pawl in its` inoperative position when released. Swinging from the stud 22 is a supplemental jaw 26 having a wear plate 27 upon its operative face, the wear plate adapted to come in contact with the nuts, pipes or rods with which the device is to be employed. rljhe wear plate 27 maybe formed with pipe engaging teeth, and will preferably stand at an angle to the longitudinal planel of the stock, and the lower end of the supplemental jaw depends as shown at 28 contiguous to the free portion of the pawl 23, leaving a space between these parts into which a wedge block 29 is `caused to engage by a spring 8() operating beneath the block. EX tending from the block 29 is a pin 31 having an enlarged terminal 82 to provide means whereby the stock and the block may be actuated to force the latter between the pawl 23 and the depending portion 28 of the supplemental jaw. The spring 30 exerts its force to maintain the block 29 between the pawl 23 and supplemental jaw 26, and thus hold theteeth of the pawl in contact with stock and with an upper l position the knob the teeth of the stock, and the supplemental j aw 26 in position at the nearest point to the stationary jaw ll, as hereafter explained.

Swinging at 33 within the longitudinal slot 13 is a bar 34: with a longitudinal slot 35 at its free end, and pivoted at 3G between ears 37 extending from the stock l0 is a small lever 38 bifurcated at one end and bearing upon opposite sides of the slotted portion of the bar 34 and with a pin 39 extending through the bifurcated portion and likewise through the slot 35, so that when the free end 4-0 of t-he lever 38 is depressed toward the slot the bar 34 will be moved outwardly against the pawl 23 and detach it from the teeth lll of the stock, the block 29 having previously been Withdrawn by a downward pull upon the knob 32. By this means the movable jaw can be released and adjusted instantly longitudinally of the stock to adapt the device to nuts, pipes or rods of different sizes. l/Vhen the movable jaw is to be released the operator draws the block 29 free from contact with the pawl and holds it in this withdrawn position against the action of the spring 30 and compresses the lever 3S to detach the pawl from the teeth of the stock and adjust the movable jaw by pressure applied in either direction, care being taken to retain the rod 3l in its withdrawn position. When the inovable jaw has been adjusted to the required 32 is released when the spring' 30 automatically forces the block 29 between the members 23-28 and forces the bearing surface 27 of the member 26 against the pipe or rod to which the device is applied, and holds it in close` contact therewith, so that when the wrench is operated it will firmly grip and rotate the pipe. A spring 4l is arranged between vthe supplemental jaw 26 and the wing 18, to maintain the supplemental jaw yieldably in position, and a spring 4-2 is arranged between the free end l0 of the lever 33 and the stock, to maintain the arm 34 yieldably in its withdrawn position, and to prevent it from being accidentally projected.

The device is simple in construction, can be inexpensively manufactured, and operates ettectually for the purposes described.

What is claimed, is

l. A wrench comprising a stock having a fixed jaw at one end and with a longitudinal slot in one edge and with ratchet teeth at the sides of the slot, a movable jaw slidable over said stock, a pawl swinging within said movable jaw and with teeth engaging the teeth of the stock, a bar swinging within said slot, means for maintaining said pawl in engagement with said teeth, and means for operating said bar to disconnect said pawl from the teeth of the stock.

2. A wrench comprising a stock having a fixed jaw at one end and with a longitudinal slot in one edge and with ratchet teeth at the sides of the slot, a mov; ble jaw slidahle over said stock, a pawl swinging within said movable jaw and with teeth engaging the teeth of the stock, a bar swinging within said slot, a stop element movable into the path of said pawl and maintaining said pawl in engagement'l with said teeth and adapted t0 be withdrawn to release the pawl, and means for operating said har to disconnect said pawl from the teeth of the stock.

3. wrench comprising a stock having a fixed liaw at one end and with a longitudinal slot in one edge and with ratchet teeth at the sides of the slot, a movable jaw slidable over said stock, a pawl swinging within said movable jaw and with teeth engaging the teeth of the stock, a bar swinging within said slet, means for maintaining said pawl in engagement with said teeth, and a lever swinging from said stock and engaging the free end of said bar and operating the saine to cause the ba to disconnect the pa wl from the teeth of the stock.

a. A wrench comprising a stock having a fixed jaw at one end and with a longitudinal slot in one edge and with ratchet teeth at 'the sides of the slot, a .movable jaw slidahle over said stock, a pawl swinging within said movable jaw and with teeth engaging the teeth of the stock, a bar swinging within said slot, a stop element movable into the path of said pawl and provided with a pro- Yjecting stem, a spring eperating to maintain said step element yieldably in engagement with the pawl, and means for operating said bar to disconnect said pawl from the teeth of the stock when the stop element is with` drawn.

5. A wrench comprising a stock having a fixed jaw at. one end and with a longitudinal slet in one edge and with ratchet teeth at the sides of the slot, a movable jaw slidable over said stock, a pawl swinging within said movable liaw and with teeth engaging the teeth of the stock, a bar swinging within said slot, a supplemental jaw swinging within said movable jaw, a stop element movable between said pawl and supplemental jaw, means for withdrawing said stop element, and means for operating said bar to disconnect aid pawl from the teeth of the stock when the stock element is withdrawn.

G. A., wrench comprising a stoel( having a fixed jaw at one end and with a longitudinal slot in one edge and with ratchet teeth at the sides of the slot, a mo over said stock and formed with a plate bearing upon one side of the stoc r and provided with a plurality of lateral webs delining a guide-way for the movable jaw, a

table jaw slidable Slo ll t) plate connected to the free ends of said operating saidrbar to disconnect said pawl webs and forming a closure to the opposite from the teeth of the stock when the. stop side of the movable jaw, apawl swinging element is withdrawn.

between said plates within the movable Jaw 1n testimony whereof; I affix my signa- 5 and with teeth engaging the teeth of the ture, in presence of two witnesses.

stock a bar Swingin@ within said slot a supplemental j aw swilging within said Inbv- WHLIAM C' SHAY' able jaw, a stop element movable between Witnesses:

said pawl and supplemental jaw, meansv for HENRY SoRENsoN,

10 withdrawing said pawl, and means for HENRY SUTTON. 

